# How do you solve #3^ { 3r - 1} = 3^ { - 2r - 3}#?

##### 2 Answers

Write your answer here...

Start with a one sentence answer

Then teach the underlying concepts

Don't copy without citing sources

preview

?

#### Answer

Write a one sentence answer...

#### Answer:

#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

Jim G.
Share

Apr 16, 2017

#### Answer:

#### Explanation:

Since the

#color(blue)"bases on both sides of the equation are 3"# we can equate the exponents.

#rArr3r-1=-2r-3#

#rArr5r=-2#

#rArrr=-2/5#

#color(blue)"As a check"#

#3^((-6/5-5/5))=3^(-11/5)#

#"and " 3^((4/5-15/5))=3^(-11/5)#

#rArrr=-2/5" is the solution"#

Was this helpful? Let the contributor know!

Write your answer here...

Start with a one sentence answer

Then teach the underlying concepts

Don't copy without citing sources

preview

?

#### Answer

Write a one sentence answer...

#### Answer:

#### Explanation

Explain in detail...

#### Explanation:

I want someone to double check my answer

Describe your changes (optional) 200

Apr 16, 2017

#### Answer:

In the given eqn, the bases are equal, so equate powers on both sides.

#### Explanation:

Was this helpful? Let the contributor know!

Describe your changes (optional) 200